| clean room |
A special work area in which air quality is concerned and sensitive to products during manufacturing or assembly process. The air in the room is regulated in term of air particles, temperature and humidity. A class 100 clean room means there exists no more than 100 particles that are larger than 0.5 microns in one cubic foot of air. Hard disk industry requires at least a Class 100 clean room for its assembly process.
출처: www.adrc.net/data-dictionary/c.htm
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| Clean Air Act |
Set of laws passed in 1970 to regulate air pollution in the US. The goal of this act was to improve air quality, and it was revised in 1990 to be more detailed about issues such as the hole in the ozone layer and acid rain.
출처: www.sustainabletable.org/intro/dictionary/
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| Clean Water Act |
Set of laws passed in 1972 to regulate water pollution in the US. This was the first-ever federal regulation of water pollution, and it gave the EPA the right to set standards and enforce them. The goal of this act was to completely stop the discharge of pollutants into the Waters of the United States and make all bodies of water in the US fishable and swimmable. Making this happen is very difficult and expensive because it's not always easy to find out who is polluting.
출처: www.sustainabletable.org/intro/dictionary/
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| clean room |
The place where semiconductor manufacturers do all their wafer processing. Dust and particles which might fall on the wafers during processing and result in the circuits not working are kept out of the clean room by filtering the air and managing the air flow. Humans are required to wear specially designed clean room bunny suits (overalls) and booties over their street clothes, and must put on gloves and face masks (humans tend to shed skin and hair). ...
출처: www.genus.com/glossary.html
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| Clean Water Act |
An act passed by the US Congress to control water pollution (formerly referred to as the Federal Water Pollution Control Act of 1972). Public Law 92500, as amended. 33 USC 1251 et seq.
출처: www.polytechnic.edu.na/Schools/civil/libraries/glo...
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